Range from the cheapest replacement of a toilet float valve £18 (G J Lewis Plumbing & Heating based in NP16) to the dearest replacement of a float valve £65 (BALDWIN MECHANICAL SERVICES based in HR9).
Comparing plumbers estimates for replacing a toilet float valve in the cistern tank gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to replace a toilet float valve in NP25 by posting a job with HaMuch and we will send it to plumbers in NP25.